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Download Environmental Implications of Expanded Coal Utilization. a by M. J. Chadwick PDF

By M. J. Chadwick

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Read Online or Download Environmental Implications of Expanded Coal Utilization. a Study By: The Beijer Institute The United Nations Environment Programme The U.S.S.R. Academy of Sciences PDF

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Sample text

Because waste is stored internally (Figure 2. ID) without intermediate transport. The geological configurations of the coal deposits favour such methods of mining. 42 Environmental Implications of Expanded Coal Utilization The technology and processes which are used in reclamation are dependent on the types of stripping and dumping machinery that are used and the way in which they are deployed. Many experts believe that draglines are the most efficient means of levelling waste surfaces. Caterpillar and wheeled dozers have also become widely accepted means of levelling surfaces in connection with both surface and deep mining coal.

The price of coal per thermal unit today is one-third that of oil. Steam coal is of considerable interest as a petroleum substitute but everything appears to indicate that its price is not directly related to the pressures of the general energy price situation. This is partially explainable if the rapid development of South African exports is considered. But, as the revival of the coal market becomes a reality, significant price increases can be anticipated. Beyond this situation, which some may consider to be transitory, it is important to consider whether a significant difference might remain between the price of coal and that of oil.

9. The estimates in this table were made in 1979. To bring this information up to date the production costs would have to be increased by at least 20%. $40) but this in no way modifies coal's competitivity, considering the evolution of prices on the oil market. The price of coal per thermal unit today is one-third that of oil. Steam coal is of considerable interest as a petroleum substitute but everything appears to indicate that its price is not directly related to the pressures of the general energy price situation.

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